Ice-sawing machine



Jfme 1 1926.

A. H. OLIVER ICE SAWING MACHINE Filed Sept. 2 1924 2 Sheets-Sheet lFEE-c NEE-En- INVENTOR Anson H. 01 '1 ver HIS ATTORNEY A.H.OUVER ICESAWING MACHINE June I 1926.

Filed Sept. 2, 1924 2 Sheets-Sheet 2 HiVENT0R H. Oliver Anson- HISATTORNEY Patented June 1, 1926 UNITED STATES PATENTOFHCE.

AN'SON HENRY OLIVER, 0F ORILLIA, ONTARIO, CANADA.

ICE-SAWING MACHINE.

Application filed September 2, 192 Serial No. 735,381, and in CanadaSeptember 2, 1924.

My invention relates to ice-sawing machines and has for its object toprovide a simply and readily constructed machine for sawing grooves in afield of ice, which may be easily operated by one man from either sideor the front thereof.

Briefly stated, my invention consists of a wooden sled-like support,carrying a wooden frame on which is mounted a variable speed internalcombustion engine, having a relief clutch, and a circular saw, connectedto the engine through a universal joint, the frame being adj ustably.pivoted on its support. Line guides are provided for controlling thedirection of the machine after the first cut is made in the field ofice.

The construction and operation of my invention will now be describedwith reference to the accompanying drawings, forming a part of thisspecification and in which- Fig. 1 is a side elevation showing the sawin operative position in the ice field.

Fig. 2 is a plan view partially broken away for the sake of clearness.

Fig. 3 is a section 011 line 3-3 of Fig. 1.

Fig. 1 is a section on line 4- 1 of Fig. 3.

Fig. 5 is a section through the gear housing on the saw mandrel.

Referring to the drawings and particularly to Figs. 1 and 2, the sled ismade up of wooden runners 1, having half-round steel shoes 2, heldtogether by two beams 3, through which wooden keys 4 are inserted. Pivotblocks 5 are placed lengthwise of the sled at an angle to the runners,secured to the front beam with bolts 6 and to the rear beam, throughslots 7 for adjustment, with bolts 8. The wooden frame, mountedlengthwise of the sled and tapering from the front to the rear, parallelwith the pivot blocks, projects over the rear end of the sled to supportthe saw and consists of the side members 9, held together by the crossbeams 10, 11 and 11 Moreover, the sills 9 are connected at the forwardend by the gas pipe 12 of the form shown and this connection forms ahandle for raising or lowering the saw when in operation.

The frame is adjustably mounted on the pivot blocks 5 by means of studs13, the heads of which are positioned in slots 14, in the sills as shownin Figs. 3 and 4.

A saw aligning screw 15, operating by a crank 15 is connected at thepivot point by means of an iron plate 16, and operates in a stationarynut 17, the comiection between the screw and the plate being effected bymeans of the collars 18 as shown in Fig. 4.

The engine, preferably a Ford model, is

mounted on an incline to the frame of the 1 machine, with the front endlower and supported on beam 10, while the rear end is suspended from theframe with the lugs 19. The engine is connected to the propeller shaft21 through the universal joint '20,"

thus permitting the operation of the shaft on an inc-line while theengine remains in a horizontal position. The propeller shaft isconnected through the boxing 22, supported on the cross beams 11 and 11to The saw is rigidly supported on the man drel between the collar 27and removable collar 28 by means of pins 29, the removable collar beingheld in'place with the nuts 30 and 31, the latter locking the former inplace.

The saw is provided with teeth which, while in operation, develop atraction power which assists with the movement of the machine. Themachine will work either forward or backward and the saw will cutequally well in either direction.

An adjustable gauge 32 is attached to the rear end of the frame, nearthe centre of the saw, for regulating the depthto which the saw may go,and this gauge is adjusted with the thickness of the ice. The lower endof the gauge carries a. roller or disc 34. so that it may readily travelupon the surface of the ice. A safety guard 33 secured to the framecovers the top portion ofthe saw.

Extending across the sled and journalled in the runners thereof are twoshafts 35 and 36, each carrying a pair of guide plates 37 which maybeadjusted lengthwise of the shaft and secured thereto by a set screw 38.The end of each shaft is turned upright at the right hand side of thesled and is connected to a bar 39 which may be moved backward or forwardby means of a lever 40, to set the guide plates as desired for directingthe movement of the machine over the ice.

It will not be necessary to describe in detail the engine, which aspreviously stated is preferably of the Ford type, but it will be notedthat the fuel tank 41 is mounted on a sheet metal covering 4E2 whichprotects the engine. 43 is the engine accelerator, ll the crank, 4L5 theradiator and 46 the gear shift or relief clutch. a7 is a grease cup onthe housing 22. The bars 51 which support the rear end of the sheetmetal covering 4-2 are extended upwardly to form handles, which may beused to steer the machine from either side. A rod 48 connected to theclutch lever 4-6 is secured in the cross beam 1.1 and provided with aspring 4:9, the tension of which may be adjusted with the nut 50. lhetension of this spring is regulated so that th friction of the clutch iscounteracted si cientiy to permit slip or release of the clutch when arsor excessive strains occur. Damage to the saw is thus prevented.

The manner of operating; my machine will be clear from the descriptionalready given. It will be noted that as the engine is mounted on theframe in an inclined position, when the machine is in operation, theengine will be in approximately a horizontal position, thus pern'iittingeliicient lubrication of the engine parts, the universal joint enablingthe transmission shaft to operate out of direct alignment with theengine.

In addition to the low cost of construction there are distinctadvantages in building my machine of wood owing to the term perature inwhich it is used. The use of a variable speed engine with a reliefclutch overcomes the tendency to break the saw and permits greaterproduction. By operating the saw aligning screw with the lever 15 theframe carrying the saw may be readily adjusted on the pivot blocks whichmay also be adjust d transversely with the slots in the rear beam of thesled.

I provide means not shown for locking the machine in balanced positionwhen not in use.

I clain1- 1. An ice-sawing machine, comprising a wooden sled havingmetal-shod runners, a frame adjustably and pivotally mounted on invertedii-shaped wooden blocks, arranged lengthwise of said sled and at anangle to the runners thereof, said blocks being bolted to the front beamof the sled and adjustably secured to the rear beam, a gas enginesupported on said frai'ne in an inclined position to adapt it to assumea substantially horizontal position, when the machine is in operation, acircular saw carried by a mandrel which is journalled in the end of saidframe and a transmission shaft, adapted to operate in an inclinedposition, connected to the engine through a universal joint.

An ice-sawing machine as defined in clainji 1 having means to adjust theposition of the ame, said means consisting of a screw operated by acrank in a stationary nut and secured to a plate which is connected to astud at the pivot of one of said blocks.

An ice-sawing machine as defined in claim 1 having means for adjustingthe po sition of the frame to effect the alignment of the saw and asheet metal covering for the engine with a fuel tank mounted thereon.

Anson HENRY omvna.

